- Pharo-users - lists.pharo.org

Re: [Pharo-users] [Help-smalltalk] GSoC news: 13 stipendiums!

by Bernat Romagosa

Great! But, how do we vote? :) 2012/4/12 Janko MivÅ¡ek <janko.mivsek(a)eranova.si> > Dear Smalltalkers, > > Wonderful news, we got 13 "slots" from Google, that is, 13 students and > their proposals will be accepted for Google and they will receive > stipendiums if they will do their projects right. More exactly, part of > 4500 USD immediately, part after interim evaluation and part at > successful finish of their projects. > > We have currently 18 paired projects, that is, projects paired with one > student among their many proposals. You can see that from project table, > see which are currently accepted (column Acc.): > > http://gsoc2012.esug.org/projects?view=projectTable > > Now mentors need to review and score those 18 project proposals to > indicate which are the best among all that nice proposals and to come > with number down to 13. This will happen until next Friday 20.April, > when we will finally decide, which 13 students to accept. Google will > then officially confirm them in few days after. > > Best regards > Janko & Carla > > -- > Smalltalk GSoC Admin Team > http://gsoc2012.esug.org > > _______________________________________________ > help-smalltalk mailing list > help-smalltalk(a)gnu.org > https://lists.gnu.org/mailman/listinfo/help-smalltalk > -- Bernat Romagosa.

April 12, 2012

GSoC news: 13 stipendiums!

by Janko MivÅ¡ek

Dear Smalltalkers, Wonderful news, we got 13 "slots" from Google, that is, 13 students and their proposals will be accepted for Google and they will receive stipendiums if they will do their projects right. More exactly, part of 4500 USD immediately, part after interim evaluation and part at successful finish of their projects. We have currently 18 paired projects, that is, projects paired with one student among their many proposals. You can see that from project table, see which are currently accepted (column Acc.): http://gsoc2012.esug.org/projects?view=projectTable Now mentors need to review and score those 18 project proposals to indicate which are the best among all that nice proposals and to come with number down to 13. This will happen until next Friday 20.April, when we will finally decide, which 13 students to accept. Google will then officially confirm them in few days after. Best regards Janko & Carla -- Smalltalk GSoC Admin Team http://gsoc2012.esug.org

April 12, 2012

Re: [Pharo-users] logging/tallying what is getting garbage collected?

by StÃ©phane Ducasse

On Apr 11, 2012, at 7:55 PM, Paul DeBruicker wrote: > Is there a way to learn what is getting garbage collected in an image? indeed it would be cool to have that. In VW we did dirty trick with overriding new and collected in info long time ago and I was surprised to see which classes where the most instantiated. So it would be cool to have that kind of "profiler" > > In a part of an application I've written the Qwaq profiler & Pharo profiler consistently report that 2 full GC's (3% uptime) and ~400 incremental GC's (9% uptime) are run. > > That makes me think I'm creating and discarding a bunch of stuff and maybe I don't need to, but I also don't have a strong idea where to begin looking. > > > Thanks > > Paul > >

April 11, 2012

logging/tallying what is getting garbage collected?

by Paul DeBruicker

Is there a way to learn what is getting garbage collected in an image? In a part of an application I've written the Qwaq profiler & Pharo profiler consistently report that 2 full GC's (3% uptime) and ~400 incremental GC's (9% uptime) are run. That makes me think I'm creating and discarding a bunch of stuff and maybe I don't need to, but I also don't have a strong idea where to begin looking. Thanks Paul

April 11, 2012

Help using Merlin

by HernÃ¡n Morales Durand

Hi all, I'm using Merlin and need some help, for example in the following script I want to associate the next button with the 'Option 2' to the ListPart (in a second pane) and the next button with the 'Option 1' to the radio button pane group (options 3 and 4, in another second pane). Should I use branches? and callbacks? May anyone show an example how to do it? | wizard | wizard := WizardControl new. wizard renderer: MerlinMorphicWizardRenderer new. wizard addPane: ( WizardFirstPane new row: ( RadioButtonsPart new inGroupboxNamed: 'Choose Option A'; options: { #'Option 1'. #'Option 2' }; defaultValue: nil; yourself ) associatedTo: #optionSelected ); addPane: ( WizardMiddlePane new row: ( ListPart new initialList: { 1 . 2 . 3 . 4 }; yourself ) ); addPane: ( WizardFirstPane new row: ( RadioButtonsPart new inGroupboxNamed: 'Choose Option B'; options: { #'Option 3'. #'Option 4' }; defaultValue: nil; yourself ) associatedTo: #optionSelected ). wizard open. Cheers, HernÃ¡n

April 10, 2012

Re: [Pharo-users] FFI seaside3.06 Mac OSX Lion dbxtalk postgres - trouble shooting

by Cameron Sanders

Thanks Mariano. I will install the newer VM -- i just downloaded it. I will get the postgres binaries you refer to (libpg) -- thank you! And I will make certain opendbx is compiled with 32 bit; if 64 bit compilation was NOT the problem with it finding the libs, then I will then see if I can get the environmental variables to point to the right place. (My first email was not clear: the libopendbx is installed in /usr/local/lib, but the backend specific components went into the subdir opendbx.) *Thank you so much for the help!* (Will you get to North America before you graduate?) -Cam On Tue, Apr 10, 2012 at 2:50 PM, Mariano Martinez Peck < marianopeck(a)gmail.com> wrote: > > > On Tue, Apr 10, 2012 at 3:57 PM, Cameron Sanders <camsanders(a)aol.com>wrote: > >> Mariano, >> >> *Thank you, regarding the 32 bits!* (I questioned that late one evening, >> and then I forgot about that possibility!) >> >> When I said Seaside3.06, it was straight out of the box (download). *So >> I will need to see which VM 3.06 has in it. How do I discover that?* I >> stopped paying attention to the VMs etc, once the one-click installs came >> with Cog. >> >> *It is not clear to me what client libraries I need from the DB vendor >> in the case of Postgres. Is it included as part of the standard package? >> * -- Any feedback here is greatly appreciated! >> >> > I could rescue some information from the old squeakdbx website. What you > need is the C library. In PostgreSQL it is called libpq > > http://www.enterprisedb.com/products-services-training/pgdownload#osx > > that seems to include everything (like the server) and not only the libpq > (all you need). Not sure if the installer lets you only install the client > (libpq). > > But notice that your first problem is that FFI cannot find OpenDBX...which > is a step before than this one (OpenDBX trying to find the postgresql > client library) > > Cheers > > > >> Thanks for the information provided, and any more than you can offer! >> Cam >> >> On Tue, Apr 10, 2012 at 4:01 AM, Mariano Martinez Peck < >> marianopeck(a)gmail.com> wrote: >> >>> Hi. It would also help if you can tell use which VM are you using >>> because the problem is in fact that FFI cannot find the opendbx library. >>> Be aware that openDBX has to be compiled 32 bits. That is, if you are in >>> a 64 bits machine, you will need to compile it for 32 bits. >>> The same for the database client library. >>> >>> Cheers >>> >>> On Mon, Apr 9, 2012 at 6:02 PM, Guillermo Polito < >>> guillermopolito(a)gmail.com> wrote: >>> >>>> Hi!! >>>> >>>> >>>> On Sun, Apr 8, 2012 at 11:53 PM, Cameron Sanders <camsanders(a)aol.com>wrote: >>>> >>>>> I am having difficulties getting set up and running with DBXTalk tools >>>>> on a Mac. I hate to pester the community with some basics, but I am getting >>>>> way too many hours in simply trying to connect to a Postgres DB. Any help >>>>> or guidance that anyone can offer is greatly appreciated. >>>>> >>>>> Keep up the good work on Pharo! It is a great platform! [I have not >>>>> checked in lately to see where things are with regard to us commercial >>>>> operators contributing to the community, but I am overdue!] >>>>> >>>>> Thanks for the feedback in advance! >>>>> -Cam >>>>> >>>>> >>>>> *#1:* From http://dbxtalk.smallworks.com.ar/Download/ >>>>> I see a paragraph near that top that reads: >>>>> >>>>> *If in the previous step you have installed OpenDBX by using its >>>>> binaries (no compilation), then you must install the databse client library >>>>> (C library) of your database.* >>>>> >>>>> By "client library", is the author referring to the libraries like >>>>> libpgsqlbackend.* which is part of the opendbx binaries? Or do I need to >>>>> install some posgres client from http://www.postgresql.org/? (My DB >>>>> server is remote, and this computer knows nothing about it.) >>>>> >>>> Yes, you need to install another thing: the client libraries from the >>>> database vendor. opendbx plays the role as an adaptor making the several >>>> database platforms polymorphic (in some kind of way :) ). >>>> See how to test it below in my reply. >>>> >>>>> I built the libs locally and successfully installed them -- after >>>>> finding specs that the utils cannot be compiled for Mac. Permissions for >>>>> all are read & execute, except for the ".a" libs which have only read >>>>> permission. >>>>> >>>> >>>> Hmm, how did you test it? >>>> >>>> You have to think of this (read the -> as "talks to"): >>>> >>>> (Smalltalk image with dbxtalk smalltalk library) -> opendbx c library >>>> -> database vendor C library -----> database (remote or local, doesn't >>>> matter) >>>> >>>> so, first of all, what you have to test, is the opendbx c library with >>>> the vendor's library (and therefore the database). You can do it executing >>>> the following from the terminal: >>>> >>>> ./odbxtest -b pgsql -h localhost -p 5432 -d myDatabase -u myUser -w >>>> myPass >>>> >>>> where: >>>> >>>> ./odbxtest -b <backend> -h <host> -p <port> -d <database name> -u >>>> <user> -w <password> >>>> >>>> *#2: does Pharo know where to look for these libraries on a mac?* Or >>>>> do I need to define environmental variables to point to them? After fishing >>>>> around, I read about a file called environment.plist (xml key/value), where >>>>> I defined the following environmental variables based on a link from >>>>> dbxtalk pages to a 2008 blog, so now my environment.plist file is stored in >>>>> ~/.MacOSX and contains the following: >>>>> >>>>> *<plist version="1.0"> >>>>> **<dict> >>>>> ** <key>LD_LIBRARY_PATH</key> >>>>> ** <string>/usr/local/lib:usr/lib</string>* >>>>> >>>>> * <key>DYLD_LIBRARY_PATH**</key> >>>>> ** <string>/usr/local/lib:usr/lib</string> >>>>> **</dict></plist>* >>>>> >>>> *More questions:* A) do I need to include the /usr/local/lib/opendbx >>>>> directory too, or do the dbx tools know to append that directory to the >>>>> other path elements? and B) after logging back into my computer (actually I >>>>> did a reboot -- it had been a while), I opened up a terminal, and executed >>>>> printenv, but the aforementioned variables are not to be seen, is there a >>>>> Mac expert in the crowd who knows why, or what the right way to do this is? >>>>> >>>> I'm not sure about this. I'm using linux, so let someone else answer >>>> this point. >>>> What about creating simlinks so you have >>>> >>>> /usr/lib/libopendbx.so --> >>>> /usr/lib/opendbx/libopendbx.so.whateverversion >>>> >>>> >>>>> *#3:* *Does anybody offer up a fairly clean image that includes the >>>>> standard seaside suite, and dbxtalk tools all pre-loaded?* >>>>> >>>>> I am just curious for the future, as I am currently stuck at testing >>>>> the OpenDBXDriver connectivity. Which implies that I have more things to >>>>> install and test. >>>>> >>>> >>>> Nope, sorry :(. But providing a clean image with dbxtalk loaded is not >>>> the problem. The problem is the rest of the environment you have to setup >>>> in order to make it work. >>>> >>>> >>>>> *#4 -- FFI question:* In seaside in the OpenDBXDriverTests the tests >>>>> all fail. (Previously I had altered DBXPostgreFacility>>createConnection to >>>>> match the db login specs.) When I debug the first failed test, it says >>>>> "createConnection:" failed "Error: External module not found", which is >>>>> what led to question(s) #2 up above. >>>>> >>>>> >>>>> An additional question in my mind, is when I am debugging FFI >>>>> connections, how can I find exactly what library it is trying to load >>>>> during the failure? And what paths it tried? >>>>> >>>>> In this case, looking at the following, near the top of the stack in >>>>> the debugger: >>>>> OpenDBXMacOSX>>apiInitialize: handle backend: backend host: host port: >>>>> port >>>>> "long odbx_init(odbx_t**, char*, char*, char*)" >>>>> <cdecl: long 'odbx_init' (ulong* char* char* char*) module: >>>>> 'opendbx'> >>>>> ^self externalCallFailed >>>>> >>>> >>>> In unix, I think the LD_LIBRARY_PATH is followed. >>>> >>>> >>>>> >>>>> I see the reference to the module 'opendbx', so I presume that is the >>>>> library being sought. *So is the general solution to finding "what" >>>>> is being sought, to search for the pattern 'module:'?* >>>>> >>>> >>>> which means libopendbx.so is the library that's looked for, at least in >>>> unix. >>>> >>>> >>>>> * >>>>> * >>>>> That still leaves the question of "*where*" it looked. Answers to #2 >>>>> up above will likely address the rules, but the question stands: *is >>>>> it possible in the debugger to see where it looked for the module? or is >>>>> that simply too difficult.* >>>>> >>>> >>>> I don't think current FFI implementation tells you that... >>>> But there were some threads talking about specifying the module >>>> location in the image code. So maybe in the future... :/ >>>> >>>> >>>>> >>>>> Note: FFI unit tests all pass except for one using Form -- "#makeStar >>>>> method not found." >>>>> >>>>> Cheers, >>>>> Cam >>>>> >>>>> >>>>> >>>> I hope to be of help. >>>> BTW, subscribe to the dbxtalk mailing list, I think that list is the >>>> idoneous place to ask this questions :). >>>> >>>> Don't hesitate to ask for more help if needed :). >>>> Guille >>>> >>> >>> >>> >>> -- >>> Mariano >>> http://marianopeck.wordpress.com >>> >>> >> > > > -- > Mariano > http://marianopeck.wordpress.com > >

April 10, 2012

Re: [Pharo-users] FFI seaside3.06 Mac OSX Lion dbxtalk postgres - trouble shooting

by Mariano Martinez Peck

On Tue, Apr 10, 2012 at 3:57 PM, Cameron Sanders <camsanders(a)aol.com> wrote: > Mariano, > > *Thank you, regarding the 32 bits!* (I questioned that late one evening, > and then I forgot about that possibility!) > > When I said Seaside3.06, it was straight out of the box (download). *So I > will need to see which VM 3.06 has in it. How do I discover that?* I > stopped paying attention to the VMs etc, once the one-click installs came > with Cog. > > *It is not clear to me what client libraries I need from the DB vendor in > the case of Postgres. Is it included as part of the standard package? * -- > Any feedback here is greatly appreciated! > > I could rescue some information from the old squeakdbx website. What you need is the C library. In PostgreSQL it is called libpq http://www.enterprisedb.com/products-services-training/pgdownload#osx that seems to include everything (like the server) and not only the libpq (all you need). Not sure if the installer lets you only install the client (libpq). But notice that your first problem is that FFI cannot find OpenDBX...which is a step before than this one (OpenDBX trying to find the postgresql client library) Cheers > Thanks for the information provided, and any more than you can offer! > Cam > > On Tue, Apr 10, 2012 at 4:01 AM, Mariano Martinez Peck < > marianopeck(a)gmail.com> wrote: > >> Hi. It would also help if you can tell use which VM are you using because >> the problem is in fact that FFI cannot find the opendbx library. >> Be aware that openDBX has to be compiled 32 bits. That is, if you are in >> a 64 bits machine, you will need to compile it for 32 bits. >> The same for the database client library. >> >> Cheers >> >> On Mon, Apr 9, 2012 at 6:02 PM, Guillermo Polito < >> guillermopolito(a)gmail.com> wrote: >> >>> Hi!! >>> >>> >>> On Sun, Apr 8, 2012 at 11:53 PM, Cameron Sanders <camsanders(a)aol.com>wrote: >>> >>>> I am having difficulties getting set up and running with DBXTalk tools >>>> on a Mac. I hate to pester the community with some basics, but I am getting >>>> way too many hours in simply trying to connect to a Postgres DB. Any help >>>> or guidance that anyone can offer is greatly appreciated. >>>> >>>> Keep up the good work on Pharo! It is a great platform! [I have not >>>> checked in lately to see where things are with regard to us commercial >>>> operators contributing to the community, but I am overdue!] >>>> >>>> Thanks for the feedback in advance! >>>> -Cam >>>> >>>> >>>> *#1:* From http://dbxtalk.smallworks.com.ar/Download/ >>>> I see a paragraph near that top that reads: >>>> >>>> *If in the previous step you have installed OpenDBX by using its >>>> binaries (no compilation), then you must install the databse client library >>>> (C library) of your database.* >>>> >>>> By "client library", is the author referring to the libraries like >>>> libpgsqlbackend.* which is part of the opendbx binaries? Or do I need to >>>> install some posgres client from http://www.postgresql.org/? (My DB >>>> server is remote, and this computer knows nothing about it.) >>>> >>> Yes, you need to install another thing: the client libraries from the >>> database vendor. opendbx plays the role as an adaptor making the several >>> database platforms polymorphic (in some kind of way :) ). >>> See how to test it below in my reply. >>> >>>> I built the libs locally and successfully installed them -- after >>>> finding specs that the utils cannot be compiled for Mac. Permissions for >>>> all are read & execute, except for the ".a" libs which have only read >>>> permission. >>>> >>> >>> Hmm, how did you test it? >>> >>> You have to think of this (read the -> as "talks to"): >>> >>> (Smalltalk image with dbxtalk smalltalk library) -> opendbx c library -> >>> database vendor C library -----> database (remote or local, doesn't matter) >>> >>> so, first of all, what you have to test, is the opendbx c library with >>> the vendor's library (and therefore the database). You can do it executing >>> the following from the terminal: >>> >>> ./odbxtest -b pgsql -h localhost -p 5432 -d myDatabase -u myUser -w >>> myPass >>> >>> where: >>> >>> ./odbxtest -b <backend> -h <host> -p <port> -d <database name> -u <user> >>> -w <password> >>> >>> *#2: does Pharo know where to look for these libraries on a mac?* Or >>>> do I need to define environmental variables to point to them? After fishing >>>> around, I read about a file called environment.plist (xml key/value), where >>>> I defined the following environmental variables based on a link from >>>> dbxtalk pages to a 2008 blog, so now my environment.plist file is stored in >>>> ~/.MacOSX and contains the following: >>>> >>>> *<plist version="1.0"> >>>> **<dict> >>>> ** <key>LD_LIBRARY_PATH</key> >>>> ** <string>/usr/local/lib:usr/lib</string>* >>>> >>>> * <key>DYLD_LIBRARY_PATH**</key> >>>> ** <string>/usr/local/lib:usr/lib</string> >>>> **</dict></plist>* >>>> >>> *More questions:* A) do I need to include the /usr/local/lib/opendbx >>>> directory too, or do the dbx tools know to append that directory to the >>>> other path elements? and B) after logging back into my computer (actually I >>>> did a reboot -- it had been a while), I opened up a terminal, and executed >>>> printenv, but the aforementioned variables are not to be seen, is there a >>>> Mac expert in the crowd who knows why, or what the right way to do this is? >>>> >>> I'm not sure about this. I'm using linux, so let someone else answer >>> this point. >>> What about creating simlinks so you have >>> >>> /usr/lib/libopendbx.so --> /usr/lib/opendbx/libopendbx.so.whateverversion >>> >>> >>>> *#3:* *Does anybody offer up a fairly clean image that includes the >>>> standard seaside suite, and dbxtalk tools all pre-loaded?* >>>> >>>> I am just curious for the future, as I am currently stuck at testing >>>> the OpenDBXDriver connectivity. Which implies that I have more things to >>>> install and test. >>>> >>> >>> Nope, sorry :(. But providing a clean image with dbxtalk loaded is not >>> the problem. The problem is the rest of the environment you have to setup >>> in order to make it work. >>> >>> >>>> *#4 -- FFI question:* In seaside in the OpenDBXDriverTests the tests >>>> all fail. (Previously I had altered DBXPostgreFacility>>createConnection to >>>> match the db login specs.) When I debug the first failed test, it says >>>> "createConnection:" failed "Error: External module not found", which is >>>> what led to question(s) #2 up above. >>>> >>>> >>>> An additional question in my mind, is when I am debugging FFI >>>> connections, how can I find exactly what library it is trying to load >>>> during the failure? And what paths it tried? >>>> >>>> In this case, looking at the following, near the top of the stack in >>>> the debugger: >>>> OpenDBXMacOSX>>apiInitialize: handle backend: backend host: host port: >>>> port >>>> "long odbx_init(odbx_t**, char*, char*, char*)" >>>> <cdecl: long 'odbx_init' (ulong* char* char* char*) module: 'opendbx'> >>>> ^self externalCallFailed >>>> >>> >>> In unix, I think the LD_LIBRARY_PATH is followed. >>> >>> >>>> >>>> I see the reference to the module 'opendbx', so I presume that is the >>>> library being sought. *So is the general solution to finding "what" is >>>> being sought, to search for the pattern 'module:'?* >>>> >>> >>> which means libopendbx.so is the library that's looked for, at least in >>> unix. >>> >>> >>>> * >>>> * >>>> That still leaves the question of "*where*" it looked. Answers to #2 >>>> up above will likely address the rules, but the question stands: *is >>>> it possible in the debugger to see where it looked for the module? or is >>>> that simply too difficult.* >>>> >>> >>> I don't think current FFI implementation tells you that... >>> But there were some threads talking about specifying the module location >>> in the image code. So maybe in the future... :/ >>> >>> >>>> >>>> Note: FFI unit tests all pass except for one using Form -- "#makeStar >>>> method not found." >>>> >>>> Cheers, >>>> Cam >>>> >>>> >>>> >>> I hope to be of help. >>> BTW, subscribe to the dbxtalk mailing list, I think that list is the >>> idoneous place to ask this questions :). >>> >>> Don't hesitate to ask for more help if needed :). >>> Guille >>> >> >> >> >> -- >> Mariano >> http://marianopeck.wordpress.com >> >> > -- Mariano http://marianopeck.wordpress.com

April 10, 2012

Re: [Pharo-users] FFI seaside3.06 Mac OSX Lion dbxtalk postgres - trouble shooting

by Mariano Martinez Peck

On Tue, Apr 10, 2012 at 8:00 PM, Cameron Sanders <camsanders(a)aol.com> wrote: > I no more than hit the send to my last (useless) note when I spotted the > OneClick.txt which says: > > This distribution is based on the following standard virtual machines: > - Mac OS X 4.2.5beta1U > > Well...that's is terrible old :( Can you try any of these: - latest one from the jenkins: https://ci.lille.inria.fr/pharo/view/VM/job/Pharo-Mac-Cocoa/ - latest from Eliot's website: http://www.mirandabanda.org/files/Cog/VM/VM.r2540/Cog.app.tgz Let us know. > >>> When I said Seaside3.06, it was straight out of the box (download). *So >>> I will need to see which VM 3.06 has in it. How do I discover that?* I >>> stopped paying attention to the VMs etc, once the one-click installs came >>> with Cog. >>> >> >> In the MacOS directory of the one-click, the vm is "Squeak VM Opt". The >> date of the VM is September 10, 2011. >> >>> >>> > [rest of content dropped] > -- Mariano http://marianopeck.wordpress.com

April 10, 2012

Re: [Pharo-users] FFI seaside3.06 Mac OSX Lion dbxtalk postgres - trouble shooting

by Cameron Sanders

I no more than hit the send to my last (useless) note when I spotted the OneClick.txt which says: This distribution is based on the following standard virtual machines: - Mac OS X 4.2.5beta1U >> When I said Seaside3.06, it was straight out of the box (download). *So >> I will need to see which VM 3.06 has in it. How do I discover that?* I >> stopped paying attention to the VMs etc, once the one-click installs came >> with Cog. >> > > In the MacOS directory of the one-click, the vm is "Squeak VM Opt". The > date of the VM is September 10, 2011. > >> >> [rest of content dropped]

April 10, 2012

Re: [Pharo-users] FFI seaside3.06 Mac OSX Lion dbxtalk postgres - trouble shooting

by Cameron Sanders

On Tue, Apr 10, 2012 at 9:57 AM, Cameron Sanders <camsanders(a)aol.com> wrote: > Mariano, > > *Thank you, regarding the 32 bits!* (I questioned that late one evening, > and then I forgot about that possibility!) > > When I said Seaside3.06, it was straight out of the box (download). *So I > will need to see which VM 3.06 has in it. How do I discover that?* I > stopped paying attention to the VMs etc, once the one-click installs came > with Cog. > In the MacOS directory of the one-click, the vm is "Squeak VM Opt". The date of the VM is September 10, 2011. > *It is not clear to me what client libraries I need from the DB vendor in > the case of Postgres. Is it included as part of the standard package? * -- > Any feedback here is greatly appreciated! > > Thanks for the information provided, and any more than you can offer! > Cam > > On Tue, Apr 10, 2012 at 4:01 AM, Mariano Martinez Peck < > marianopeck(a)gmail.com> wrote: > >> Hi. It would also help if you can tell use which VM are you using because >> the problem is in fact that FFI cannot find the opendbx library. >> Be aware that openDBX has to be compiled 32 bits. That is, if you are in >> a 64 bits machine, you will need to compile it for 32 bits. >> The same for the database client library. >> >> Cheers >> >> On Mon, Apr 9, 2012 at 6:02 PM, Guillermo Polito < >> guillermopolito(a)gmail.com> wrote: >> >>> Hi!! >>> >>> >>> On Sun, Apr 8, 2012 at 11:53 PM, Cameron Sanders <camsanders(a)aol.com>wrote: >>> >>>> I am having difficulties getting set up and running with DBXTalk tools >>>> on a Mac. I hate to pester the community with some basics, but I am getting >>>> way too many hours in simply trying to connect to a Postgres DB. Any help >>>> or guidance that anyone can offer is greatly appreciated. >>>> >>>> Keep up the good work on Pharo! It is a great platform! [I have not >>>> checked in lately to see where things are with regard to us commercial >>>> operators contributing to the community, but I am overdue!] >>>> >>>> Thanks for the feedback in advance! >>>> -Cam >>>> >>>> >>>> *#1:* From http://dbxtalk.smallworks.com.ar/Download/ >>>> I see a paragraph near that top that reads: >>>> >>>> *If in the previous step you have installed OpenDBX by using its >>>> binaries (no compilation), then you must install the databse client library >>>> (C library) of your database.* >>>> >>>> By "client library", is the author referring to the libraries like >>>> libpgsqlbackend.* which is part of the opendbx binaries? Or do I need to >>>> install some posgres client from http://www.postgresql.org/? (My DB >>>> server is remote, and this computer knows nothing about it.) >>>> >>> Yes, you need to install another thing: the client libraries from the >>> database vendor. opendbx plays the role as an adaptor making the several >>> database platforms polymorphic (in some kind of way :) ). >>> See how to test it below in my reply. >>> >>>> I built the libs locally and successfully installed them -- after >>>> finding specs that the utils cannot be compiled for Mac. Permissions for >>>> all are read & execute, except for the ".a" libs which have only read >>>> permission. >>>> >>> >>> Hmm, how did you test it? >>> >>> You have to think of this (read the -> as "talks to"): >>> >>> (Smalltalk image with dbxtalk smalltalk library) -> opendbx c library -> >>> database vendor C library -----> database (remote or local, doesn't matter) >>> >>> so, first of all, what you have to test, is the opendbx c library with >>> the vendor's library (and therefore the database). You can do it executing >>> the following from the terminal: >>> >>> ./odbxtest -b pgsql -h localhost -p 5432 -d myDatabase -u myUser -w >>> myPass >>> >>> where: >>> >>> ./odbxtest -b <backend> -h <host> -p <port> -d <database name> -u <user> >>> -w <password> >>> >>> *#2: does Pharo know where to look for these libraries on a mac?* Or >>>> do I need to define environmental variables to point to them? After fishing >>>> around, I read about a file called environment.plist (xml key/value), where >>>> I defined the following environmental variables based on a link from >>>> dbxtalk pages to a 2008 blog, so now my environment.plist file is stored in >>>> ~/.MacOSX and contains the following: >>>> >>>> *<plist version="1.0"> >>>> **<dict> >>>> ** <key>LD_LIBRARY_PATH</key> >>>> ** <string>/usr/local/lib:usr/lib</string>* >>>> >>>> * <key>DYLD_LIBRARY_PATH**</key> >>>> ** <string>/usr/local/lib:usr/lib</string> >>>> **</dict></plist>* >>>> >>> *More questions:* A) do I need to include the /usr/local/lib/opendbx >>>> directory too, or do the dbx tools know to append that directory to the >>>> other path elements? and B) after logging back into my computer (actually I >>>> did a reboot -- it had been a while), I opened up a terminal, and executed >>>> printenv, but the aforementioned variables are not to be seen, is there a >>>> Mac expert in the crowd who knows why, or what the right way to do this is? >>>> >>> I'm not sure about this. I'm using linux, so let someone else answer >>> this point. >>> What about creating simlinks so you have >>> >>> /usr/lib/libopendbx.so --> /usr/lib/opendbx/libopendbx.so.whateverversion >>> >>> >>>> *#3:* *Does anybody offer up a fairly clean image that includes the >>>> standard seaside suite, and dbxtalk tools all pre-loaded?* >>>> >>>> I am just curious for the future, as I am currently stuck at testing >>>> the OpenDBXDriver connectivity. Which implies that I have more things to >>>> install and test. >>>> >>> >>> Nope, sorry :(. But providing a clean image with dbxtalk loaded is not >>> the problem. The problem is the rest of the environment you have to setup >>> in order to make it work. >>> >>> >>>> *#4 -- FFI question:* In seaside in the OpenDBXDriverTests the tests >>>> all fail. (Previously I had altered DBXPostgreFacility>>createConnection to >>>> match the db login specs.) When I debug the first failed test, it says >>>> "createConnection:" failed "Error: External module not found", which is >>>> what led to question(s) #2 up above. >>>> >>>> >>>> An additional question in my mind, is when I am debugging FFI >>>> connections, how can I find exactly what library it is trying to load >>>> during the failure? And what paths it tried? >>>> >>>> In this case, looking at the following, near the top of the stack in >>>> the debugger: >>>> OpenDBXMacOSX>>apiInitialize: handle backend: backend host: host port: >>>> port >>>> "long odbx_init(odbx_t**, char*, char*, char*)" >>>> <cdecl: long 'odbx_init' (ulong* char* char* char*) module: 'opendbx'> >>>> ^self externalCallFailed >>>> >>> >>> In unix, I think the LD_LIBRARY_PATH is followed. >>> >>> >>>> >>>> I see the reference to the module 'opendbx', so I presume that is the >>>> library being sought. *So is the general solution to finding "what" is >>>> being sought, to search for the pattern 'module:'?* >>>> >>> >>> which means libopendbx.so is the library that's looked for, at least in >>> unix. >>> >>> >>>> * >>>> * >>>> That still leaves the question of "*where*" it looked. Answers to #2 >>>> up above will likely address the rules, but the question stands: *is >>>> it possible in the debugger to see where it looked for the module? or is >>>> that simply too difficult.* >>>> >>> >>> I don't think current FFI implementation tells you that... >>> But there were some threads talking about specifying the module location >>> in the image code. So maybe in the future... :/ >>> >>> >>>> >>>> Note: FFI unit tests all pass except for one using Form -- "#makeStar >>>> method not found." >>>> >>>> Cheers, >>>> Cam >>>> >>>> >>>> >>> I hope to be of help. >>> BTW, subscribe to the dbxtalk mailing list, I think that list is the >>> idoneous place to ask this questions :). >>> >>> Don't hesitate to ask for more help if needed :). >>> Guille >>> >> >> >> >> -- >> Mariano >> http://marianopeck.wordpress.com >> >> >

April 10, 2012